However, the DNA that makes up chromosomes becomes more tightly packed during cell division and is then visible under a microscope. Most of what researchers know about chromosomes was learned by observing chromosomes during cell division.
From a career standpoint, the term âbiologistâ can have many meanings. As a biologist, you might study plants, animals, people or a particular environment. You could work in marine biology, wildlife biology or biochemistry, travel to the Brazilian rain forest to study biological compounds or work in a clinical laboratory as a microbiologist.
wikiHow to Become a Biologist. Biologists study living organisms and research how they interact and relate to the environment. Colleges and universities, government agencies, pharmaceutical companies, conservation groups, science museums, and many other sites hire biologists.